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Published on: January 8, 2017
Stem cells' exodus: a journey to immortality.
Yi Zhou1, Michelle Lewallen, Ting Xie
1Stowers Institute for Medical Research, 1000 East 50(th) Street, Kansas City, MO 64110, USA.
Developmental Cell
|February 2, 2013
Summary
Stem cell niches in the colonial chordate Botryllus schlosseri maintain cycling stem cells. These cells migrate from degenerating cell islands to new buds, highlighting niche regulation.
Area of Science:
- Developmental Biology
- Stem Cell Biology
- Marine Biology
Background:
- Stem cell niches are crucial microenvironments regulating stem cell self-renewal and retention.
- Understanding niche dynamics is key to regenerative processes in multicellular organisms.
Discussion:
- Rinkevich et al. (2013) identified cell islands (CIs) in Botryllus schlosseri as functional stem cell niches.
- These CIs support a population of cycling stem cells essential for colonial development.
Key Insights:
- Stem cells actively migrate from degenerated CIs to newly formed buds within the Botryllus schlosseri colony.
- This migration demonstrates a dynamic regulatory mechanism for stem cell maintenance and tissue regeneration.
Outlook:
- Further research can explore the molecular signals governing stem cell migration between CIs.
- This model system offers insights into stem cell niche evolution and conservation across species.
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